Stefan Gusa created CASSANDRA-16327:
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Summary: Add metric for checking the token-awarness of the users
Key: CASSANDRA-16327
URL: https://issues.apache.org/jira/browse/CASSANDRA-16327
Project: Cassandra
Issue Type: Improvement
Reporter: Stefan Gusa
In order to increase the speed of the interaction with a Cassandra database,
especially when the consistency level and the replication factor settings make
one node enough for responding, having knowledge of the token allocation among
the nodes and querying the specific node which holds the data requested might
be a good solution. Basically, in these conditions, the internode communication
latency is eliminated.
A metric which counts the number of queries that resolve on the coordinator
node, and the number of those which do not, might be useful for the client
applications which are designed to be token-aware as this way it would be easy
to see if they work as expected (the number of remote executed queries is low)
or not.
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